Richard Iannuzzi, president of New York United Teachers union, talks to reporters at the Capitol on Wednesday, Feb. 20, 2013, in Albany.

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The state's teachers' union said it plans to call for a vote of no confidence in state Education Department Commissioner John King on the ongoing controversy over new student testing and teacher evaluations.

Richard Iannuzzi, president of the New York State United Teachers union, said he plans to take a vote of the group's Board of Directors within the next two weeks. It would be voted on by the union in April, he said.

"The frustration level is overwhelming," Iannuzzi said Thursday on Time Warner Cable News' "Capital Tonight." "The time has come. We have to address this now, and what we see is a ...